Check with S&W race cars, they are a dealer for the narrow stiletto rack used on dragsters. I don't have a part number but they only had one model for a door car. It was setup for 24" center to center frame rails. There was a little extra fabrication needed because it does not come with any type of rod ends or ball and socket. I have piece of hex alum that is threaded with right and left ends. Then there are to heims per side and and toe is adjusted just like it would be with a sleeve and tie rod ends. Their number is 1-800-523-3353

Another choice is VPrace cars... here's a link
http://www.vpracecars.com/userimages/VPRC08PG10.pdf